发明名称 |
Magnetic recording media with resin containing vinyl chloride copolymer |
摘要 |
A resin used for magnetic recording media, comprising a vinyl chloride copolymer containing vinyl monomers with hydroxyl groups and vinyl monomers with quaternary ammonium salt groups as component units. The resin is made by a method which comprises polymerizing an organic solvent solution containing vinyl chloride, vinyl monomers with hydroxyl groups and vinyl monomers with quaternary ammonium salt groups in a reacting apparatus to thereby precipitate a vinyl chloride copolymer, the interior surface of said reacting apparatus, which comes into contact with said organic solvent solution being coated with a fluororesin.
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申请公布号 |
US5139892(A) |
申请公布日期 |
1992.08.18 |
申请号 |
US19910654876 |
申请日期 |
1991.02.13 |
申请人 |
SEKISUI KAGAKU KOGYO KABUSHIKI |
发明人 |
NAKACHI, TAKESHI;HATA, AKIO;WATANABE, YOSHIHISA |
分类号 |
C08F2/06;G11B5/702;(IPC1-7):G11B5/70 |
主分类号 |
C08F2/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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